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yesmermaidenisaac-blog · 6 years ago

Text

Perhaps most of you’ve gotten heard over the course of the program, modular modules and programming, and understand the logic and use it. Nicely, when you're the one who's obtained this text, what's higher, but don’t worry in the event you're not. Here we are going to speak about module programming in javascript. For those who used this technique in other languages, you must know that because the JavaScript in common could be very totally different from the rest of the languages, that is totally different for the same program. Modular Writing may have a common story! In any case, let's take the headline.

Why modular programming

I feel that the answer to this query is just not very troublesome, any programming want to re-write the code that they could use several occasions, and just name it in totally different places. By sorting the program and using the code once more, Hamoon The program also has an incredible structure and extra handy programming. It additionally makes it easier to keep the code and the code is modified later. You would not have to vary every little thing in this system and alter the code. Then again, whenever you write in modular JavaScript, each module will get its personal particular scope, and it's nice that you do not fill the whole area of your program with variables in each module (or you will not be so soiled) that you simply'll end up with later. So let's go to the primary point Now it's time to see how we will write in modular javascript. There are a number of methods to do this, the primary query which may get in your mind is that we’ve got the module discussion in the ES6 and that's the case. However no, it's true that the module discussion has been launched to the eS, but nonetheless no modular programming browser helps JS. What’s our task now? We have now to use the libraries to do this, or use the Module Bundlers more accurately, to try this for us.

So, we need to do precisely what we do in the Nodus JS to the aspect of Clither, in order that we will require our file on the aspect of Clayt. Aha, we’ve not remembered. With no library, we will additionally write modulars and there are some methods to do that. Properly, I don’t advise, and it's actually a little bit of a multitude. When the libraries with a lot functionality do this, we come to ourselves. Let's face it.

So let's see how these libraries are divided. And which one is best to choose? With a view to write modular packages in your shopper aspect, you even have three CommonJS and AMD and ES6, each of which we explain (all of which are based mostly on certainly one of these three)

The two widespread ones, CommonJs and AMD, are generally referred to as Scriptloader. Notice that these aren’t a library and not just a normal or a way to standardize the code that writes the remaining.

Commonjs

The Comenius JS module is a javascript code that comes out of every module in the form of a code, and we will use it. The NodeGS itself additionally makes use of the Comenius GS, so when you work with Node, you possibly can easily study Widespread. Let's see the code from Widespread:

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

Properly, that's the code for writing in javascript, as I stated, the scope of all the program might be stored clear, and it's a good suggestion that we will use our code in all places and never repeat it. Within the meantime, you see the code is straightforward.

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Let's know the books we need to know in the subsequent few strains, as I stated, generally known as the Module Bundler (or Module Bundler). Properly, first, let's see what the bundle module actually means, and what we need to do is add modules to ourselves.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Nicely, might you say what's the appropriate order? Suppose we have now a module that’s affiliated with Jquery. If we need to put modules collectively just in a file, we have to ensure that the Jquery itself is loaded first after which it’s the module we wrote and is affiliated with Jquery. If not, my code won’t work.

Why should we mix our modules and get an output file?

Why should there be an output file, why do not load any of the modules that we’d like in the browser. The reason being apparent as a result of each time you could have a tag You add to your page. In truth, you’re slowly decreasing your load. Now imagine that you’ve 15 javascript information and modules that ought to be loaded for a single web page. And as you combine it, you'll additionally reduce your file and truly have a zipper file on the output.

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

The dangerous information is that Browserfy is long been unstoppable and truly lifeless. However many still use it. Anyway, this combiner like the remainder of the Bundlers has plugins that you need to use.

For AMD

To work with AMD can also be probably the most well-known RequireJs. Until I remembered, I might say one thing to AMD, as I mentioned at first, AMD masses the modules in a non-synchronous manner. Whatever three information we’ve got, it does not make much difference for us, as a result of they all begin downloading from the server, so in such a state of affairs, it does not imply that the so-called information ought to be bundled. That's why they’re not referred to AMD Bundler libraries and are often known as Module Loader.

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

Nicely, yes, what's our JavaScript technique for? One of many largest bundlers is rollup. Which is to say that it claims that the file you’re lastly delivering is smaller in measurement than the other Bundler modules. We've also launched a function referred to as tree-shaking, which we're talking about at the bottom. Roll-up works on a config file, an example of it right here. In case you take a look at the code one factor you are able to do is get issues executed:

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

module.exports = entry: “./examples/index.js”, format: 'umd', dest: 'bundle.js' plugins: [ babel( exclude: “node_modules/**” ), npm( jsnext: true, foremost: true ), commonjs( embrace: ‘node_modules/**’ ), uglify() ] ;

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19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

We come to the hardest of them, from the online pack you need to use to combine CommonJs, AMD, and Es information. Webpack, like rollup, has its personal options, for example, introduces a very good code-splitting function, which we're talking about under. The idea of the web-based job is a config file that performs every part inside it. For instance, you’ll be able to see a web-based config file:

module.exports = context: __dirname + “/ src”, entry: “./entry” output: path: __dirname filename: “bundle.js” , module: loaders: [ check: /.js$/, loader: ‘babel-loader’, query: presets: [‘es2015’]

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

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eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform every (collection, iterator) if (Array.isArray (assortment)) for (var i = zero; i <assortment.length; i ++) iterator (collection[i], i, collection); else for (var key in collection) iterator (collection[key], key, assortment);

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

But in reality, if we get the code above, we'll see that we solely use one part of our file and that it's just the perform of each one. So whether we need to get all the contents of the util.js file, We used a small part? The tree-shaking function provides us the power to routinely add the code we used (in reality). In truth, the shake model of the code we wrote above is as follows:

perform each (assortment, iterator) if (Array.isArray (collection)) for (var i = 0; i <assortment.length; i ++) iterator (assortment[i], i, assortment); else for (var key in assortment) iterator (collection[key], key, assortment); ;

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

So that you noticed in the previous part that it was automated detection. Actually, here we do the work manually. For example, think about the instance above that we simply need to use solely an util half. So suppose we also wrote the code we read, that is:

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

As soon as again, as soon as we solely wanted this code on a page, we just name that code. That’s, every.bundle.js does not characterize your complete bundle.js. Now suppose we’ve got a web page that solely needs this file, so there's no have to name the whole utilities in that page. Properly, then we think about this file as a bundle. Then compile this file, for example, every file's identify is output, each.bundle.js and the compiled file, which is definitely the identical file, its content with its dependencies on this Face:

perform each (collection, iterator) if (Array.isArray (assortment)) for (var i = zero; i <collection.size; i ++) iterator (assortment[i], i, assortment); else for (var key in collection) iterator (collection[key], key, collection); ;

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

One point: As I came upon, the online packer will later help tree-shaking, however if you want to use it now, you need to manually run a collection of configurations. For more info, you possibly can discuss with this hyperlink.

Properly, let's get the least loaded Module loader

With the GPS system, you can too write Commonjs, AMD, and Es6 syntax. The GIS system constructed on this repository is definitely a polyfill for the es6 modules, which we've just talked about above doesn’t help any browser right now. Examples embrace the GIS code:

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

Nicely see what jspm is. The truth is, jspm is a bundle for systemjs, and in reality, from npm and github, the packages may be found. jspm isn’t just a package deal, and in reality, other issues can do for you. The truth is, you obtain packages for npm for the shopper aspect and offer you some additional features like bundling information.

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

In fact, no, firstly, in fact, aside from what we launched, there are definitely different banners, however definitely not many and not very well known. Second, there’s another approach to write modules, and that's using transpilers in javascript. For more info, see Transspeeders here.

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Notice that once you use transpilers, you can’t do something like bundling. And most significantly, these bundles I've introduced have instruments that you should use with them inside (like Webpack) from Typescript.

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

#AMD #Blog #browserify #CommonJs #es6 modules #javascript #modular javascript #Node.js #rollup #systemjs #webpack #آموزش ها #جاوااسکریپت ماژولار #ماژول در جاوا اسکریپت #وب پک

0 notes

queer-gnome · 6 years ago

Text

Why modular programming

Commonjs

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Why should we mix our modules and get an output file?

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

For AMD

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

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four

eight

19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

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eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

Properly, let's get the least loaded Module loader

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

0 notes

punkestboy-blog · 6 years ago

Text

Why modular programming

Commonjs

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Why should we mix our modules and get an output file?

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

For AMD

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

three

four

eight

19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

three

eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

Properly, let's get the least loaded Module loader

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

0 notes

webronzeferrari-blog · 6 years ago

Text

Why modular programming

Commonjs

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Why should we mix our modules and get an output file?

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

For AMD

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

three

four

eight

19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

three

eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

Properly, let's get the least loaded Module loader

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

0 notes

ourwinterana0universe · 6 years ago

Text

Why modular programming

Commonjs

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Why should we mix our modules and get an output file?

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

For AMD

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

three

four

eight

19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

three

eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

Properly, let's get the least loaded Module loader

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

0 notes

isoristudiesus · 6 years ago

Text

Why modular programming

Commonjs

perform myModule () this.hey = perform () return 'hey!';

this.goodbye = perform () return 'goodbye!';

module.exports = myModule;

perform myModule ()

this.hey = perform ()

return 'hey!';

this.goodbye = perform ()

return 'goodbye!';

module.exports = myModule;

Nicely, now, if you wish to use this code, we'll have to use another one:

can myModule = require ('myModule');

can myModuleInstance = new myModule (); myModuleInstance.howdy (); // 'howdy!' myModuleInstance.goodbye (); // 'goodbye!'

can myModule = require ('myModule');

can myModuleInstance = new myModule ();

myModuleInstance.good day (); // 'howdy!'

myModuleInstance.goodbye (); // 'goodbye!'

The necessary factor about CommonJs is that it masses the modules simultaneously. That is, when you have three information, they may load in the order they have been written (one after the opposite)

AMD

Properly, now if you want to obtain the information on the similar time, what?

Will probably be your selection of AMD. Let's check out the code right here:

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule) console.log (myModule.hey ()); );

outline ([‘myModule’, ‘myOtherModule’], perform (myModule, myOtherModule)

console.log (myModule.howdy ());

);

Properly, let's additionally say that many people don’t like this technique (in contrast to time) to load javascript information; as well as the CommonJs and es6 syntax is simpler to know.

Nicely, is it going to end right here and we shouldn’t have another selection?

UMD

For once you want each of you.

ES6

Properly, the final choice is es6. In fact, it's simply JavaScript. Which you in all probability heard too. For extra info on modules on es6, see this hyperlink.

Instance code syntax es6:

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ]; can reply = sum (values);

doc.getElementById (“answer”). innerHTML = reply;

import sum from “./sum”;

var values = [ 1, 2, 4, 5, 6, 7, 8, 9 ];

can answer = sum (values);

document.getElementById (“answer”). innerHTML = answer;

Nicely, earlier than the relevant libraries referring to each of the four strategies I've outlined above, there are a variety of issues to keep in thoughts.

Bundling the modules is actually placing together the modules beneath their proper association and ultimately pushing the output right into a file.

Why should we mix our modules and get an output file?

Let's introduce the library of the methods we outlined above.

For commonjs

For the bundle or combination or whatever you want, it uses the CommonJs to be probably the most recognized Browserify technique. Perhaps you've already heard his identify.

To work with Browserify, assume that you’ve a file named fundamental.js that insert a module and use it:

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

can myDependency = require ('myDependency');

can myGrades = [93, 95, 88, 0, 91];

can myAverageGrade = myDependency.average (myGrades);

Nicely, here we’ve got just one dependency for Kodemon, and that's truly myDependency. If we need to bundle this file and its affiliation into a file, command:

browserify essential.js -in bundle.js

browserify foremost.js -in bundle.js

I execute this command and truly put the command most important.js file and all its dependencies in the right order inside a file named bundle.js.

For AMD

In fact, in reality, we have now three information or could also be affected by our loading velocity, so RequireJS additionally has some ways to bundle the modules.

Till I keep in mind, I say that for ADM, there’s one other library referred to as almond, which is, in fact, lighter.

For ES6

“use strict”;

let babel = require (“rollup-plugin-babel”), commonjs = require (“rollup-plugin-commonjs”), npm = require (“rollup-plugin-npm”), uglify = require (“rollup-plugin-uglify”);

three

four

eight

19th

“use strict”;

let babel = require (“rollup-plugin-babel”),

commonjs = require (“rollup-plugin-commonjs”),

npm = require (“rollup-plugin-npm”),

uglify = require (“rollup-plugin-uglify”);

module.exports =

entry: “./examples/index.js”,

format: 'umd',

dest: 'bundle.js'

plugins:[[[[

babel (

)

npm (

jsnext: true

primary: true

)

commonjs (

embrace: 'node_modules / **'

)

uglify ()

]

;

, check: /.espresso$/, loader: 'coffee-loader' , check: /.ts$/, loader: 'ts-loader' ]

three

eight

19th

module.exports =

context: __dirname + “/ src”,

entry: “./entry”

output:

path: __dirname

filename: “bundle.js”

module:

loaders:[[[[

check: /.js$/

loader: 'babel-loader'

query:

presets: [‘es2015’]

check: /.coffee$/,

loader: 'coffee-loader'

check: /.ts$/,

loader: 'ts-loader'

]

Properly, let's check out a few of the options we talked about however did not clarify.

Tree-shaking

See what this function is and what it's like. Suppose you’ve got a module referred to as util.js whose content is as follows:

export perform filter (assortment, check) can filtered = []; every (collection, perform (item) if (check (merchandise)) filtered.push (item); ); return filtered;

export perform map (assortment, iterator) can mapped = []; every (collection, perform (value, key, collection) mapped.push (iterator (worth)); ); return mapped;

four

19th

export perform every (collection, iterator)

if (Array.isArray (collection))

for (var i = zero; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (assortment[key], key, assortment);

export perform filter (assortment, check)

can filtered = [];

every (assortment, perform (merchandise)

if (check (item))

filtered.push (item);

);

return filtered;

export perform map (collection, iterator)

can mapped = [];

each (assortment, perform (value, key, assortment)

mapped.push (iterator (value));

);

return mapped;

And now suppose you need to use this module from your app. So you employ it first to learn it and then use it:

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

every ([1, 2, 3], perform (x) console.log (x));

perform each (assortment, iterator)

if (Array.isArray (assortment))

for (var i = 0; i <collection.size; i ++)

iterator (assortment[i], i, collection);

else

for (var key in collection)

iterator (collection[key], key, assortment);

;

each ([1, 2, 3], perform (x) console.log (x));

Not that we get the complete contents of the util.js file.

Code-splitting

import * as utils from './utils.js';

Utils.each ([1, 2, 3], perform (x) console.log (x));

import * as utils from './utils.js';

Utils.every ([1, 2, 3], perform (x) console.log (x));

each ([1, 2, 3], perform (x) console.log (x));

perform every (collection, iterator)

if (Array.isArray (assortment))

for (var i = zero; i <collection.length; i ++)

iterator (assortment[i], i, assortment);

else

for (var key in collection)

iterator (assortment[key], key, collection);

;

each ([1, 2, 3], perform (x) console.log (x));

Properly, let's get the least loaded Module loader

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

System.import ('./ src / codeFile.js'). Then (perform (m)

// do one thing with 'm'

);

Jspm

The necessary thing about jspm is that it's made with regard to http2.

To read a superb article that compares the webpack with jspm, you possibly can discuss with this hyperlink.

So is that this all the best way to code modular code in javascript?

We’re working here with Typescript and Coffescript.

To work with Typescript, an example code:

import * as _ from 'lodash';

const double = (value: quantity) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

three

four

import * as _ from 'lodash';

const double = (value: number) => value * 2

const addFive = (worth: quantity) => _.sum ([value, 5])

export =

double

addFive

The code for the Typescript module is similar to the es6 itself, and this is excellent.

The subsequent transshiper is Coffescript, the place you possibly can see the sample code for its module half:

sum = require 'lodash / sum'

double = (number) -> number * 2 addFive = (quantity) -> sum ([number, 5])

module.exports = double: double addFive: addFive

sum = require 'lodash / sum'

double = (quantity) -> quantity * 2

addFive = (number) -> sum ([number, 5])

module.exports =

double: double

addFive: addFive

Properly, hopefully this article has been edited for you. In the long run, I additionally supply some useful hyperlinks that you will discover out for more.

Lasso: An fascinating Bundler module!

Spittable: This one also helps the es6 and commonjs syntax in addition to code-splitting.

Steal.js: A loader module that additionally supports both widespread and AMD.

Hyperlink comparison file measurement of the output of the Bundler module collectively

A hyperlink to match the dimensions of the output file

Examine module code with totally different bundles

Persian tutorial webpack

The post Understanding Modular Programming in Javascript appeared first on Android Smart Gears.

0 notes

sleepl-ss · 2 years ago

Link

Does angular use SystemJS 2023? Does angular use SystemJS? Choosing a format to publish an Angular

0 notes

questpond · 7 years ago

Link

#module loaders #step by step Angular #SystemJS #Learn angular step by step #angular training #angular

0 notes

clye · 8 years ago

Link

#JavaScript #SystemJS #package manager #module bundler

0 notes

webhawkstechnology-blog · 6 years ago

Text

Why to upgrade to Angular 2

Introduction of Angular 2

Angular 2 is one of the most popular platforms which are a successor to Google Angular 1 framework. With its help, Angular JS developers can build complex applications in browsers and beyond. Angular 2 is not only the next or advanced version of Angular 1, it is fully redesigned and rewritten. Thus, the architecture of Angular 2 is completely different from Angular 1. This tutorial looks at the various aspects of Angular 2 framework which includes the basics of the framework, the setup of Angular and how to work with the various aspects of the framework. Unlike its predecessor, Angular 2 is a TypeScript-based, web application development platform that makes the switch from MVC (model-view-controller) to a components-based approach to web development.

Benefits of Angular 2

Mobile Support: Though the Ionic framework has always worked well with Angular, the platform offers better mobile support with the version 2. The 1.x version compromised heavily on user experience and application performance in general. With its built-in mobile-orientation, Angular 2.0 is more geared for cross-platform mobile application development.

Faster and Modern Browsers: Faster and modern browsers are demanded by developers today. Developers want Angular 2 stress more on browsers like IE10/11, Chrome, Firefox, Opera & Safari on the desktop and Chrome on Android, Windows Phone 8+, iOS6 & Firefox mobile. Developers believe that this would allow AngularJS codebase to be short and compact and AngularJS would support the latest and greatest features without worrying about backward compatibility and polyfills. This would simplify the AngularJS app development process.

High Performance: Angular2 uses superset of JavaScript which is highly optimized which makes the app and web to load faster. Angular2 loads quickly with component router. It helps in automatic code splitting so user only load code required to vendor the view. Many modules are removed from angular’s core, resulting in better performance means you will be able to pick and choose the part you need.

Changing World of Web: The web has changed noticeably and no doubt it will continue changing in the future as well. The current version of AngularJS cannot work with the new web components like custom elements, HTML imports; shadow DOM etc. which allow developers to create fully encapsulated custom elements. Developers anticipate with all hopes that Angular 2 must fully support all web components.

Component Based Development: A component is an independent software unit that can be composed with the other components to create a software system. Component based web development is pretty much future of web development. Angular2 is focused on component base development. Angularjs require entire stack to be written using angular but angular2 emphasis separation of components /allow segmentation within the app to be written independently. Developers can concentrate on business logic only. These things are not just features but the requirement of any thick-client web framework.

Why to upgrade to Angular 2 ?

Angular 2 is entirely component-based and even the final application is a component of the platform. Components and directives have replaced controllers and scopes. Even the specification for directives has been simplified and will probably further improve. They are the communication channels for components and run in the browser with elements and events. Angular 2 components have their own injector so you no longer have to work with a single injector for the entire application. With an improved dependency injection model, there are more opportunities for component or object-based work.

Optimized for Mobile- Angular 2 has been carefully optimized for boasting improved memory efficiency, enhanced mobile performance, and fewer CPU cycles. It’s as clear of an indication as any that Angular 2 is going to serve as a mobile-first framework in order to encourage the mobile app development process. This version also supports sophisticated touch and gesture events across modern tablet and mobile devices.

Typescript Support- Angular 2 uses Typescript and variety of concepts common in back-end. That is why it is more back-end developer-friendly. It's worth noting that dependency injection container makes use of metadata generated by Typescript. Another important facet is IDE integration is that it makes easier to scale large projects through refactoring your whole code base at the same time. If you are interested in Typescript, the docs are a great place to begin with. Moreover, Typescript usage improves developer experience thanks to good support from text editors and IDE's. With libraries like React already using Typescript, web/mobile app developers can implement the library in their Angular 2 project seamlessly.

Modular Development- Angular 1 created a fair share of headaches when it came to loading modules or deciding between Require.js and Web Pack. Fortunately, these decisions are removed entirely from Angular 2 as the new release shies away from ineffective modules to make room for performance improvements. Angular 2 also integrates System.js, a universal dynamic modular loader, which provides an environment for loading ES6, Common, and AMD modules.

$scope Out, Components in- Angular 2 gets rid of controllers and $scope. You may wonder how you’re going to stitch your homepage together! Well, don’t worry too much − Angular 2 introduces Components as an easier way to build complex web apps and pages. Angular 2 utilizes directives (DOMs) and components (templates). In simple terms, you can build individual component classes that act as isolated parts of your pages. Components then are highly functional and customizable directives that can be configured to build and specify classes, selectors, and views for companion templates. Angular 2 components make it possible to write code that won’t interfere with other pieces of code within the component itself.

Native Mobile Development- The best part about Angular 2 is “it’s more framework-oriented”. This means the code you write for mobile/tablet devices will need to be converted using a framework like Ionic or Native Script. One single skillset and code base can be used to scale and build large architectures of code and with the integration of a framework (like, you guessed it, NativeScript or Ionic); you get a plethora of room to be flexible with the way your native applications function.

Code Syntax Changes- One more notable feature of Angular 2 is that it adds more than a few bells and whistles to the syntax usage. This comprises (but is not limited to) improving data-binding with properties inputs, changing the way routing works, changing an appearance of directives syntax, and, finally, improving the way local variables that are being used widely. One more notable feature of Angular 2 is that it adds more than a few bells and whistles to the syntax usage. This comprises improving data-binding with properties inputs, changing the way routing works, changing an appearance of directives syntax, and, finally, improving the way local variables that are being used widely.

Comparison between Angular 1 and Angular 2

Angular 1

In order to create service use provider, factory, service, constant and value

In order to automatically detection changed use $scope, $watch, $scope, $apply, $timeout.

Syntax event for example ng-click

Syntax properties for example ng-hid, ng-checked

It use Filter

Angular 2

In order to create service use only class

In order to automatically detection changed use Zone.js.

Syntax event for example (click) or (dbl-click)

Syntax properties for example [class: hidden] [checked]

It use pipe

How to migrate Angular 1 to Angular 2

It is a very simple and easy task to upgrade Angular 1 to Angular 2, but this has to be done only if the applications demand it. In this article, I will suggest a number of ways which could be taken into consideration in order to migrate existing applications from Angular 1.x to 2. Therefore, depending on the organizational need, the appropriate migration approach should be used.

Upgrading to Angular 2 is quite an easy step to take, but one that should be made carefully. There are two major ways to feel the taste of Angular 2 in your project. Which you use depends on whatever requirements your project has. The angular team have provided two paths to this:

ngForward

ngForward is not a real upgrade framework for Angular 2 but instead we can use it to create Angular 1 apps that look like Angular 2.

If you still feel uncomfortable upgrading your existing application to Angular 2, you can fall to ngForward to feel the taste and sweetness of the good tidings Angular 2 brings but still remain in your comfort zone.

You can either re-write your angular app gradually to look as if it was written in Angular 2 or add features in an Angular 2 manner leaving the existing project untouched. Another benefit that comes with this is that it prepares you and your team for the future even when you choose to hold onto the past for a little bit longer. I will guide you through a basic setup to use ngForward but in order to be on track, have a look at the Quick Start for Angular 2.

If you took time to review the Quick Start as I suggested, you won't be lost with the configuration. SystemJS is used to load the Angular application after it has been bootstrapped as we will soon see. Finally in our app.ts, we can code like its Angular 2.

ngUpgrade

Writing an Angular 1.x app that looks like Angular 2 is not good enough. We need the real stuff. The challenge then becomes that with a large existing Angular 1.x project, it becomes really difficult to re-write our entire app to Angular 2, and even using ngForward would not be ideal. This is where ngUpgrade comes to our aid. ngUpgrade is the real stuff.

Unlike ngForward, ngUpgrade was covered clearly in the Angular 2 docs. If you fall in the category of developers that will take this path, then spare few minutes and digest this.

We'll also be writing more articles on upgrading to Angular 2 and we'll focus more on ngUpgrade in a future article.

#web development #website design #responsive web design #wordpress web development

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t-baba · 5 years ago

Photo

Memoization, Svelte loves TypeScript, and V8 8.5

#498 — July 24, 2020

Unsubscribe | Read on the Web

JavaScript Weekly

Several New Features Promoted to Stage 4 at TC39 — If you’re interested in the future of JavaScript, several features have been promoted to stage 4 which, in TC39 parlance, means they are ‘finished’ and ready for inclusion in the formal ECMAScript standard. They include:

Promise.any and AggregateError

Number separator support (e.g. 1_000_000)

Weak references

Improvements to Intl.DateTimeFormat

..and more, naturally 😄

Hemanth HM

Vue 3 Now in Release Candidate Stage — The final Vue 3.0 release isn’t due till sometime next month, but the API and implementation are now considered ‘stabilized’ with no new major features or breaking changes expected. There’s also a beta of the devtools with 3.0 support and a new v3 focused documentation site. Also here's some of what's new in Vue 3.

Evan You

Learn State Machines from the Creator of XState, David Khourshid — By modeling the state in your application with state machines and statecharts, you will spend less time debugging edge cases and more time modeling complex application logic in a visually clear and robust way.

Frontend Masters sponsor

Svelte 💛 TypeScript — Svelte, a popular compile-time JavaScript framework, now supports TypeScript too. Here’s how it works and how the current approach makes a previously difficult task a lot easier.

Orta Therox

V8 Version 8.5 Now in Beta — Coming soon to a Node.js near you (not to mention Chrome 85), the latest branch of the V8 JavaScript engine boasts Promise.any, String.prototype.replaceAll (no regex needed!) and support for logical assignment operators (like ||=).

Zeynep Cankara (Google)

What The Heck Is.. Memoization? — Dan Abramov is back tackling the topic of memoization – when you can optimize a function by caching results that are ‘expensive’ (in terms of time or memory) to calculate numerous times.

Dan Abramov

⚡️ Quick bytes:

There's a new release (0.62) of React Native for Windows which supports Fast Refresh.

The proposal for records and tuples has reached stage 2 at TC39. It'd bring record (#{x:1, y:2}) and tuple (#[1, 2, 3, 4]) data structures to JavaScript.

Other things happened at the recent TC39 meeting with other proposals too!

Do you use MDN? It's celebrating its 15th birthday this week in a variety of ways 🥳

💻 Jobs

Senior Full-Stack Engineer to Join Growing Team (React, Node.js) - London or Remote — Build our mental health platform for psychedelic therapy. Core tech is evidence-based generative music for therapists, care seekers and physical spaces.

Wavepaths

Senior Front-End Systems Architect (Remote, Western Hemisphere) — Got experience architecting and implementing front-end systems? Join us (in this fully remote role) and help us define best-in-class experience managers, site generators, UI and conversation frameworks.

MyPlanet

One Application, Hundreds of Hiring Managers — Use Vettery to connect with hiring managers at startups and Fortune 500 companies. It's free for job-seekers.

Vettery

📚 Tutorials, Opinions and Stories

The Official Redux Essentials Tutorial.. Redux — A redevelopment of the basic Redux introduction that focuses on teaching you how to use the popular state container the right way with best practices. It’s practicality first and then digs into ‘how it works’ later on.

Redux Team

A Gentle Introduction to Webpack — No violence here, just why webpack exists, what problems it solves, and how to use it. Tyler has a good reputation as a teacher in the JavaScript space, so enjoy.

Tyler McGinnis

Eliminating Duplicate Objects from Arrays: Three Approaches

Dr. Axel Rauschmayer

Serverless Rendering with Cloudflare Workers — How to do server-side rendering ‘at the edge’ using Workers Sites, Wrangler, HTMLRewriter, and tools from the broader Workers platform.

Kabir Sikand

A Deep Dive Into V8 — Dive into V8's internal functioning, compilation and garbage collection processes, single-threaded nature, and more.

AppSignal sponsor

▶ New Course: Build JavaScript Applications with Node.js — Microsoft has released a video course covering Node from the very start through to setting up a project, debugging, using VS Code, and building an Express-based API.

Microsoft

An Introduction to Stimulus.js — Released by Basecamp a year or two ago now, Stimulus is a very light library to add behavior to your HTML elements without going full-on with a framework. Commonly used in the Ruby on Rails world, but worth checking out in its own right.

Mike Rogers

Your Blog Doesn’t Need a JavaScript Framework — Perhaps controversial, but, in explaining why he chose Eleventy over Gatsby, Iain argues that developers often overcomplicate sites, adding heavy frameworks where none is needed?

Iain Bean

How to Create a Dynamic Rick and Morty Wiki Web App with Next.js — A good tutorial for getting started with Next.js and deploying to Vercel by building a fun wiki site.

Colby Fayock

A Mental Model to Think in TypeScript — If you’re new to TypeScript and struggling with how to ‘think more in types.’

🔧 Code & Tools

Perfect Arrows: A Minimal Way to Draw 'Perfect' Arrows Between Points and Shapes — Here’s a live demo.

Steve Ruiz

🎸 React Guitar: A Flexible 'Guitar Neck' Component for React — You’d use this to render things like chord positions, say. But, even better, you can ‘play’ it too 😁

React Guitar

Breakpoints and console.log Is the Past, Time Travel Is the Future — 15x faster JavaScript debugging than with breakpoints and console.log.

Wallaby.js sponsor

Handsontable: A Mature Data Grid That Feels Like a Spreadsheet — Somehow it’s been six years since we linked this last, but it’s still being updated and works with Vue, React, and Angular too. The only downside is it’s dual licensed, so it’s only free for evaluation or non-commercial use. GitHub repo.

Handsoncode

⚡️ Quick releases:

Node 14.6.0

Jasmine 3.6.0 — Popular testing framework.

SystemJS 6.4.0 — Dynamic ES module loader.

Commander 6.0.0 — Node command-line interfaces made easy.

ESLint 7.5.0 — The JS code problem finder and fixer.

Alpine 2.5.0 — Compose JavaScript behavior in markup.

🎨 Creative Corner

Over the past few years Elijah Manor has been penning a few frontend developer jokes. Now, he's converted one such joke into a comic strip using the TypeScript-powered Excalidraw web-tool. Take a look:

by via JavaScript Weekly https://ift.tt/30QbDPI

#Javascript Branding #Javascript Weekly

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